Sleep should be part of your training plan

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Metrifit Athlete Monitoring System

Sleep

Asking athletes to play on minimal sleep is the same as asking them to “play with one hand tied behind their back …It’s making them do something we know degrades their reaction time, their ability to take in their training, to get the most benefit out of it. They spend all this time practicing but never get to sleep.

Dr Charles Czeisler, Director of the Division of Sleep Medicine at Harvard

Importance of Sleep

The desire for athletes to perform at the peak of their ability means that many are willing to try whatever they can to be successful. They will watch closely what they eat, train to the maximum, take care to avoid injury and even work hard to improve their psychological approach to the sport. However, there is one key ingredient in being a successful athlete that is just as important but one that it is often ignored – sleep. At times athletes are guilty of placing too little emphasis on sleep as they want to spend more time training or preparing for the big event. However, there is a growing acceptance that getting the right amount of sleep is essential to ensure both the body and mind are at the optimum level.

This is highlighted by a series of studies that examine the importance of sleep including studies by Cheri Mah of the Stanford Sleep Disorders Clinic who has concluded that sleep is

a significant factor in achieving peak athletic performance”

and that athletes can be hindered by building up ‘sleep debt’.

Research studies have shown that the negative effects of sleep debt can be counteracted by a combination of naps and overnight recovery sleep. This assertion is borne out by research by Waterhouse et al (2007) which shows that following a period of partial sleep deprivation, a 30 minute nap will increase speed and alertness compared to no nap.

One of the best illustrations of the benefit of sleep comes from Mah’s study of the Stanford University’s male basketball team who witnessed improved performances in terms of speed and accuracy. The study saw players follow a normal routine of six to nine hours sleep for two to four weeks, and for the next five to seven weeks, increase their sleep to ten hours. The findings revealed that sprint times were reduced from 16.2 seconds to 15.5 seconds, while their shooting accuracy improved by 9% and in the same time fatigue levels decreased. Crucially, this evidence was backed up by improved performances during competitive games.

Three benefits of sleep

The importance of sleep is summed by Ashleen Bandesha in 3 reasons why sleep is important for athletic performance who states that 7-9 hours of sleep will allow for psychological, physiological and physical recovery.

1 – PSYCHOLOGICAL
The psychological effects can be broken down into the following categories:-

  • REACTION TIMES – Lack of sleep has been known to reduce this alertness and decrease reaction times
  • LEARNING & MEMORY – Sleep is quite impactful on our ability to learn new tasks that require both motor coordination and performance. Our focus, attention and vigilance take a back seat when we are sleep deprived
  • MOTIVATION – If you take on the day fully rested, your mood will be boosted and you won’t feel the dreaded irritability that comes from lack of sleep

2 – PHYSIOLOGICAL
One of the key physiological benefits of sleep is hormone release. The quality of your sleep is just as important, if not more, than the length of your sleep. Stages 3 and 4 are integral to athlete development as this is where growth hormone is released and cortisol is regulated. Growth hormone is essential for muscle repair, muscle building, bone growth and promoting the oxidization of fats. This is critical for maintaining a certain standard of performance throughout your athletic career. Cortisol, also known as the stress hormone is regulated in deep sleep. Cortisol levels directly impact the body’s ability to digest glucose.

3 – PHYSICAL
The physical benefits of sleep are also vital in terms of injury risk and illness susceptibility.

  • INJURY RISK – Research has shown that adolescents who had less than 8 hours of sleep, compared to their counterparts who slept eight hours or more, were 1.7 times more likely to experience an injury
  • ILLNESS SUSCEPTIBILITY– Studies have illustrated that people who slept less than seven hours were three times more likely to develop a cold after direct application of a cold virus, than those who got an optimal amount of sleep

Sleep is as important as exercise

As a result of the many studies conducted into the area of sleep it is essential that coaches and athletes should incorporate it into their training plan and its importance is summed up by Derek-Jan Dijk, Professor of sleep and physiology at the University of Surrey, when he said that sleep should be valued as highly as exercise.

We should look at sleep as an active process. Getting enough sleep is a positive thing which will help you perform in all aspects of life; It may be that extra sleep leads to more effective training routines and helps us learn patterns better. Practice makes perfect – and that happens more quickly if you get enough sleep

What is Metrifit?

Metrifit helps coaches get to know their athletes, and helps athletes get ready to perform. It is a simple, intuitive and effective approach to monitoring looking at how the ‘small picture’ of an athlete’s daily habits, shapes the ‘big picture’ of match day performance.

Whether your use of Metrifit is to have a highly accurate reflection of acute to chronic work-load ratios to make training/competition decisions, to empower student-athletes to be reflective and take charge of their Health & Wellness, or as a basis to engage in conversation with your Student-Athletes thereby demonstrating you care about them as individuals, Metrifit simply works. It meets kids where they reside – on their mobile phones and through technology and is quick, easy, and habit-forming to use.

Why not have a look at our Metrifit Ready to Perform product and gain insight on the physical and mental state of your athletes through our daily wellbeing questionnaire? To find out more visit our Metrifit Product Overview page or contact at for a free demo. You can also register your team and use Metrifit for 14 days for free.

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Why Monitor

"The holistic approach of medical, physical, emotional and even tech/tactical; bringing together what we need to monitor and evaluate our University players. “If you can’t measure it – it doesn’t exist.” I know we were the first Canadian University to use the program and I know many more will be asking for it in the future! I highly recommend Metrifit."

Tino Fusco, B.Sc. ChPC

Head Coach, Women's Soccer, Mount Royal University (Canada)

Metrifit Athlete Monitoring System
2017-06-12T14:25:37+00:00

Tino Fusco, B.Sc. ChPC

Head Coach, Women's Soccer, Mount Royal University (Canada)

"The holistic approach of medical, physical, emotional and even tech/tactical; bringing together what we need to monitor and evaluate our University players. “If you can’t measure it – it doesn’t exist.” I know we were the first Canadian University to use the program and I know many more will be asking for it in the future! I highly recommend Metrifit."
"Metrifit is an amazingly easy-to-use yet comprehensive monitoring tool for training and recovery! The elite athletes we work with are able track and monitor their situations and states daily, in order to maximize their performance loads and recovery practices. This also helps our coaches customize the training programs ‎more effectively. I'd recommend this for any serious team / athlete or coach in wanting to bring out the very best in their long-term performances! "

Edgar K. Tham

Founder and Chief Sport & Performance Psychologist, SportPsych Consulting (Singapore, Indonesia, Philippines)

Metrifit Athlete Monitoring System
2017-06-12T18:03:35+00:00

Edgar K. Tham

Founder and Chief Sport & Performance Psychologist, SportPsych Consulting (Singapore, Indonesia, Philippines)

"Metrifit is an amazingly easy-to-use yet comprehensive monitoring tool for training and recovery! The elite athletes we work with are able track and monitor their situations and states daily, in order to maximize their performance loads and recovery practices. This also helps our coaches customize the training programs ‎more effectively. I'd recommend this for any serious team / athlete or coach in wanting to bring out the very best in their long-term performances! "
"Gaelic football is an intermittent high-intensity collision-based field sport requiring high levels of endurance, strength, power, agility, and speed as well as proficiency with gaelic-related skills. These components comprise the training modalities used at the elite level and the monitoring of such a vast range of modalities is central to peak performance. The athlete monitoring tool Metrifit allows us to do this and can keep us one step ahead of our competitors."

Jason McGahan

Sports Scientist, Kildare Football, PhD Sports Science Researcher

Metrifit Athlete Monitoring System
2017-06-12T14:23:50+00:00

Jason McGahan

Sports Scientist, Kildare Football, PhD Sports Science Researcher

"Gaelic football is an intermittent high-intensity collision-based field sport requiring high levels of endurance, strength, power, agility, and speed as well as proficiency with gaelic-related skills. These components comprise the training modalities used at the elite level and the monitoring of such a vast range of modalities is central to peak performance. The athlete monitoring tool Metrifit allows us to do this and can keep us one step ahead of our competitors."
"Our coaches through Metrifit basically have an ‘X-ray’ vision into the habits and lifestyles and stressors their athletes have on a day to day basis, especially when they are not together. Thus the professional authentic relationships created through the casual conversations, reflection process and application provided is priceless."

Brian Clarke

Head Strength and Conditioning Co-ordinator,Noblesville High School

Metrifit Athlete Monitoring System
2017-06-12T14:21:17+00:00

Brian Clarke

Head Strength and Conditioning Co-ordinator,Noblesville High School

"Our coaches through Metrifit basically have an ‘X-ray’ vision into the habits and lifestyles and stressors their athletes have on a day to day basis, especially when they are not together. Thus the professional authentic relationships created through the casual conversations, reflection process and application provided is priceless."
"Metrifit has been instrumental in helping our international Managers, Coaches and Medical teams to identify players who require modifications in training loads or who are struggling with some aspect of their preparation for, or recovery from, training and matches.  One of the big strengths of this technology is that it allows our Managers and Medical teams to monitor players both during international competition and outside of these times."

Dan Horan

Head of Fitness for International Football/Fitness Coach Men's Senior Team
Football Association of Ireland

Metrifit Athlete Monitoring System
2017-06-16T15:11:55+00:00

Dan Horan

Head of Fitness for International Football/Fitness Coach Men's Senior Team
Football Association of Ireland

"Metrifit has been instrumental in helping our international Managers, Coaches and Medical teams to identify players who require modifications in training loads or who are struggling with some aspect of their preparation for, or recovery from, training and matches.  One of the big strengths of this technology is that it allows our Managers and Medical teams to monitor players both during international competition and outside of these times."
"Metrifit has been hugely beneficial in supporting our coaches and back room staff to track and monitor our players training loads, performance and readiness to train. Having a one-stop shop for collating all relevant information across a holistic picture of the player allows us to help prevent burnout, injury and provide timely feedback and communication to all."

Eamonn Fitzmaurice

Kerry Senior Football, Manager

Metrifit Athlete Monitoring System
2017-06-12T14:01:46+00:00

Eamonn Fitzmaurice

Kerry Senior Football, Manager

"Metrifit has been hugely beneficial in supporting our coaches and back room staff to track and monitor our players training loads, performance and readiness to train. Having a one-stop shop for collating all relevant information across a holistic picture of the player allows us to help prevent burnout, injury and provide timely feedback and communication to all."
"Metrifit provides immediate insight and feedback on the physical and mental states of the student-athletes.  It allows us to adjust practices and training sessions to accurately meet needs. We have been able to identify potential injury concerns, track current injury status and monitor return to play progress."

Kari Thompson

Head Volley Ball Coach, Southern Illinois University

Metrifit Athlete Monitoring System
2017-06-16T15:08:31+00:00

Kari Thompson

Head Volley Ball Coach, Southern Illinois University

"Metrifit provides immediate insight and feedback on the physical and mental states of the student-athletes.  It allows us to adjust practices and training sessions to accurately meet needs. We have been able to identify potential injury concerns, track current injury status and monitor return to play progress."
"I've found Metrifit an invaluable resource. Not only to monitor daily wellness, readiness to train and training load within the squad, but also to monitor training load externally with additional external squads. Furthermore, Metrifit has acted as a key teaching tool, allowing young athletes associate good sleeping, eating and recovery habits to an improved sense of wellness and thus superior on-field performance."

Tommy Mooney

Strength and Conditioning Coach at DCU Sport and with Dublin Minor GAA

Metrifit Athlete Monitoring System
2017-06-14T13:31:14+00:00

Tommy Mooney

Strength and Conditioning Coach at DCU Sport and with Dublin Minor GAA

"I've found Metrifit an invaluable resource. Not only to monitor daily wellness, readiness to train and training load within the squad, but also to monitor training load externally with additional external squads. Furthermore, Metrifit has acted as a key teaching tool, allowing young athletes associate good sleeping, eating and recovery habits to an improved sense of wellness and thus superior on-field performance."
“Metrifit has become a multifactorial platform that has helped up us provide deeper context to the decisions that we make on a daily basis in regards to the physical development of our student-athletes. We have intimately been utilizing both the subjective wellness questionnaire along with player training load data to drive professional conversation and actionable tasks to enhance the sporting results and quality of life for our student-athletes with unparalleled success.”

Kevin Schultz
Associate Director of Strength & Conditioning
Director of Olympic Strength & Conditioning
University of Wisconsin

Metrifit Athlete Monitoring System
2017-06-20T12:12:33+00:00

Kevin Schultz
Associate Director of Strength & Conditioning
Director of Olympic Strength & Conditioning
University of Wisconsin

“Metrifit has become a multifactorial platform that has helped up us provide deeper context to the decisions that we make on a daily basis in regards to the physical development of our student-athletes. We have intimately been utilizing both the subjective wellness questionnaire along with player training load data to drive professional conversation and actionable tasks to enhance the sporting results and quality of life for our student-athletes with unparalleled success.”
"Metrifit has enabled us to bring to life the complexiities associated with managing the academic, pastoral and sporting demands of pupils aged 13 - 18 in a UK day and boarding school environment It has provided another bridge between coaches and sports pupis, giving pupils a space to provide honest self reflection on wellbeing and providing coaches a head start on appropriate freshness and fatigue balance across the school week."

Graham Williams

Athletic Development Coach, MSc ASCC
Millfield School, UK

Metrifit Athlete Monitoring System
2017-06-19T14:14:37+00:00

Graham Williams

Athletic Development Coach, MSc ASCC
Millfield School, UK

"Metrifit has enabled us to bring to life the complexiities associated with managing the academic, pastoral and sporting demands of pupils aged 13 - 18 in a UK day and boarding school environment It has provided another bridge between coaches and sports pupis, giving pupils a space to provide honest self reflection on wellbeing and providing coaches a head start on appropriate freshness and fatigue balance across the school week."
"I wanted to reach out to thank Metrifit for an extremely successful season. Our Regis University women’s side won the ultra-competitive RMAC with a 11-0-1 record. Our student-athletes reported in post-season interviews the positive use of Metrifit that enabled their own reflection about their bodies and also found value providing information to coaches for our strategic planning purposes. On more than one occasion, we recognized deviations from norms and were able to step-in with a quick chat to help a player get back on track or refer her to the proper support personnel for further assistance. Fantastic! "

J.B. Belzer
Head Coach, Women's Soccer at Regis University

Metrifit Athlete Monitoring System
2018-09-13T13:47:09+00:00

J.B. Belzer
Head Coach, Women's Soccer at Regis University

"I wanted to reach out to thank Metrifit for an extremely successful season. Our Regis University women’s side won the ultra-competitive RMAC with a 11-0-1 record. Our student-athletes reported in post-season interviews the positive use of Metrifit that enabled their own reflection about their bodies and also found value providing information to coaches for our strategic planning purposes. On more than one occasion, we recognized deviations from norms and were able to step-in with a quick chat to help a player get back on track or refer her to the proper support personnel for further assistance. Fantastic! "
"The cutting edge technology of Metrifit enables Managers, Coaches and Players to use this innovative technology to gain these crucial percentage points over their opponents in a technologically advanced yet easy to use web-based platform. The data collated on a daily basis greatly informs Management Teams while the educational aspect of the system really appeals to modern day athletes who are constantly looking for that extra edge."

Cian O’Neill

Kildare Senior Football Manager

Metrifit Athlete Monitoring System
2017-06-14T13:24:03+00:00

Cian O’Neill

Kildare Senior Football Manager

"The cutting edge technology of Metrifit enables Managers, Coaches and Players to use this innovative technology to gain these crucial percentage points over their opponents in a technologically advanced yet easy to use web-based platform. The data collated on a daily basis greatly informs Management Teams while the educational aspect of the system really appeals to modern day athletes who are constantly looking for that extra edge."
"What’s more impressive is the ability to utilize the basics but at the same time have the capability to explore detailed and intricate correlative data points that helps us as coaches gain the most from our athletes. Metrifit has also served as an easy communications hub to ensure essential information is passed to the appropriate team. We are excited to what the future from Metrifit will bring."

Michael Torres

CEO, Shift Performance, Miami

Metrifit Athlete Monitoring System
2017-06-14T14:09:22+00:00

Michael Torres

CEO, Shift Performance, Miami

"What’s more impressive is the ability to utilize the basics but at the same time have the capability to explore detailed and intricate correlative data points that helps us as coaches gain the most from our athletes. Metrifit has also served as an easy communications hub to ensure essential information is passed to the appropriate team. We are excited to what the future from Metrifit will bring."
"Metrifit is an outstanding platform to track your athletes’ wellness. It’s simple to use, easy to implement and gives outstanding information on your athlete’s subjective wellness which can be used to assign training loads. I highly recommend Metrifit for any coach looking to begin implementing technology into their program"

Brijesh Patel

Quinnipiac University, Head Strength and Conditioning Coach

Metrifit Athlete Monitoring System
2017-06-12T17:58:50+00:00

Brijesh Patel

Quinnipiac University, Head Strength and Conditioning Coach

"Metrifit is an outstanding platform to track your athletes’ wellness. It’s simple to use, easy to implement and gives outstanding information on your athlete’s subjective wellness which can be used to assign training loads. I highly recommend Metrifit for any coach looking to begin implementing technology into their program"
"The ability to acutely monitor stress and recovery and make the correct adjustments was critical to our health and performance throughout the NCAA tournament. Metrifit has a very strong educational component. With the information we get, I am able to clearly understand the habits and behaviors of our athletes, and how they may be impacting performance."

Erik Helland

Director of Strength & Conditioning and Head Strength Coach Men’s basketball, University of Wisconsin

Metrifit Athlete Monitoring System
2017-06-12T11:42:14+00:00

Erik Helland

Director of Strength & Conditioning and Head Strength Coach Men’s basketball, University of Wisconsin

"The ability to acutely monitor stress and recovery and make the correct adjustments was critical to our health and performance throughout the NCAA tournament. Metrifit has a very strong educational component. With the information we get, I am able to clearly understand the habits and behaviors of our athletes, and how they may be impacting performance."
"The success of young athletes using Metrifit was an interesting challenge in the Elite Soccer space… After six months of learning, creating habit with teenagers the project is a huge success…. 90% completion rate has allowed us deal with all the key KPI’s that are needed in their development. In our space with developing athletes…Metrifit is a godsend and is the most important tool in this space."

Niall O’Driscoll

Academy Directory, SJ.B (St. Joseph’s Bray ) Academy

Metrifit Athlete Monitoring System
2017-06-16T16:51:01+00:00

Niall O’Driscoll

Academy Directory, SJ.B (St. Joseph’s Bray ) Academy

"The success of young athletes using Metrifit was an interesting challenge in the Elite Soccer space… After six months of learning, creating habit with teenagers the project is a huge success…. 90% completion rate has allowed us deal with all the key KPI’s that are needed in their development. In our space with developing athletes…Metrifit is a godsend and is the most important tool in this space."
"When our players have been only training with the national team Metrifit allows me to liaise very closely with our conditioning coaches to manage load and intensity of training during training camps. I recommend it to anyone who wants an easy to use monitoring system."

Dave Passmore

Head Coach, Irish Hockey

Metrifit Athlete Monitoring System
2017-06-15T12:51:46+00:00

Dave Passmore

Head Coach, Irish Hockey

"When our players have been only training with the national team Metrifit allows me to liaise very closely with our conditioning coaches to manage load and intensity of training during training camps. I recommend it to anyone who wants an easy to use monitoring system."
"Metrifit is an integral part of the set up within the senior and intermediate inter-county Camogie.  The data collected daily on the individual players is critical to the decision making of the backroom team including, managers, trainers, selectors, physiotherapist and indeed myself. As a nutritionist it allows me to monitor the quality of the player’s diet, energy levels, sleep pattern and overall wellbeing."

Yvonne Treacy

Nutritionist, Wexford Camogie

Metrifit Athlete Monitoring System
2017-06-13T16:38:55+00:00

Yvonne Treacy

Nutritionist, Wexford Camogie

"Metrifit is an integral part of the set up within the senior and intermediate inter-county Camogie.  The data collected daily on the individual players is critical to the decision making of the backroom team including, managers, trainers, selectors, physiotherapist and indeed myself. As a nutritionist it allows me to monitor the quality of the player’s diet, energy levels, sleep pattern and overall wellbeing."
"While working with the Clare Senior Hurling team (2012-2014), Horse Sport Ireland (U25 European Eventing Champions) and currently with the Limerick Senior Hurling Team, Metrifit provides our team with critical information across a number of essential aspects of elite athletic performance. You don’t really know how your players are responding to training stimuli unless you have daily data and Metrifit provides and easy to use and highly effective means of finding this critical information."

Joe O’Connor

NISUS Fitness, S&C Coach Clare Senior Hurling, Horse Sport Ireland and Limerick Senior Hurling

Metrifit Athlete Monitoring System
2017-06-12T13:55:49+00:00

Joe O’Connor

NISUS Fitness, S&C Coach Clare Senior Hurling, Horse Sport Ireland and Limerick Senior Hurling

"While working with the Clare Senior Hurling team (2012-2014), Horse Sport Ireland (U25 European Eventing Champions) and currently with the Limerick Senior Hurling Team, Metrifit provides our team with critical information across a number of essential aspects of elite athletic performance. You don’t really know how your players are responding to training stimuli unless you have daily data and Metrifit provides and easy to use and highly effective means of finding this critical information."
"The visualisation of data allows for easy discussion between athletes, performance staff and medical teams and offers the potential to predict and avoid issues which could hamper performance. Over the year the data has proven instrumental in our critical decision making. Metrifit is a excellent monitoring tool however the unsung additional aspect is the fantastic and tireless customer support."

Robert Walsh
Strength Coach
Nederlandse Ski Vereniging (Netherlands Ski/Snowboard Team)
Metrifit Athlete Monitoring System
2017-07-25T14:10:08+00:00
Robert Walsh
Strength Coach
Nederlandse Ski Vereniging (Netherlands Ski/Snowboard Team)
"The visualisation of data allows for easy discussion between athletes, performance staff and medical teams and offers the potential to predict and avoid issues which could hamper performance. Over the year the data has proven instrumental in our critical decision making. Metrifit is a excellent monitoring tool however the unsung additional aspect is the fantastic and tireless customer support."
"As a school that cannot spend large amounts of money on athlete monitoring, Metrifit has provided us with a great tool for monitoring stress and athlete readiness at a great rate. Being athlete driven, we're able to get buy-in from the athlete, and drive individual or team wide conversations regarding lifestyle and performance education in the direction needed. Seeing acute and chronic stress on a real-time basis has greatly improved the way we schedule workouts and arrange travel during the season."

Derek Bol
Strength & Conditioning Coach, Valparaiso University
Metrifit Athlete Monitoring System
2017-06-20T22:26:45+00:00
Derek Bol
Strength & Conditioning Coach, Valparaiso University
"As a school that cannot spend large amounts of money on athlete monitoring, Metrifit has provided us with a great tool for monitoring stress and athlete readiness at a great rate. Being athlete driven, we're able to get buy-in from the athlete, and drive individual or team wide conversations regarding lifestyle and performance education in the direction needed. Seeing acute and chronic stress on a real-time basis has greatly improved the way we schedule workouts and arrange travel during the season."
"We have been using Metrifit for the past season at Cornish Pirates. It has been greatly beneficial for us to have our wellness and load management data on one easy to access system. We have found this invaluable over the past season whereby Coaches, Physios and Strength and conditioning coaches can monitor both the psychological and physiological load of our athletes on a daily basis."

Paul Cremin

Head Physiotherapist, Cornish Pirates Rugby Club

Metrifit Athlete Monitoring System
2017-06-16T15:06:04+00:00

Paul Cremin

Head Physiotherapist, Cornish Pirates Rugby Club

"We have been using Metrifit for the past season at Cornish Pirates. It has been greatly beneficial for us to have our wellness and load management data on one easy to access system. We have found this invaluable over the past season whereby Coaches, Physios and Strength and conditioning coaches can monitor both the psychological and physiological load of our athletes on a daily basis."
"Metrifit has been used to gain a more in-depth insight into our student-athlete’s progressive athletic development and balance relative to their particular sporting and training activities, academic studies and total load. Metrifit doesn’t just help with optimising our Sports Scholarship students’ athletic performance. It assists us in helping them get the balance right between their sporting activities and academic studies."

Richard Deuchrass

Lincoln University Athletic Performance Manager

Metrifit Athlete Monitoring System
2017-06-12T13:58:58+00:00

Richard Deuchrass

Lincoln University Athletic Performance Manager

"Metrifit has been used to gain a more in-depth insight into our student-athlete’s progressive athletic development and balance relative to their particular sporting and training activities, academic studies and total load. Metrifit doesn’t just help with optimising our Sports Scholarship students’ athletic performance. It assists us in helping them get the balance right between their sporting activities and academic studies."

References

The Doctor Who Coaches Athletes on Sleep by Danielle Elliot

Ongoing Study Continues to Show that Extra Sleep Improves Athletic Performance | American Academy of Sleep Medicine

The role of a short post-lunch nap in improving cognitive, motor, and sprint performance in participants with partial sleep deprivation by J. Waterhouse , G. Atkinson , B. Edwards & T. Reilly

The effects of sleep extension on the athletic performance of collegiate basketball players by Mah CD, Mah KE, Kezirian EJ, Dement WC

3 reasons why sleep is important for athletic performance by Ashleen Bandesha

Sleeping longer ‘helps athletes reach peak performance’

Sleep and the Elite Athlete | Gatorade Sports Science Institute

The Importance Of Sleep For Weightlifters And Other Athletes by Dresdin Archibald

Sleep And High Performance: What Olympic Athletes Know About Sleep by Michael Gervais, PhD

Benefits of napping and an extended duration of recovery sleep on alertness and immune cells after acute sleep restriction by Faraut B, Boudjeltia KZ, Dyzma M, Rousseau A, David E, Stenuit P, Franck T, Van Antwerpen P, Vanhaeverbeek M, Kerkhofs M.

A scientific understanding of the benefits of sleep | Metrifit

Good news for athletes suffering from sleep disorders | Metrifit

Monitoring sleep is invaluable for a coach | Metrifit

Tips for improving your sleep | Metrifit

Metrifit Factsheet: Sleep and the athlete | Metrifit